PEAK YIELD AND DAYS TO ATTAIN PEAK YIELD OF DAIRY COWS UNDER FIELD CONDITION*

Jakir Hussain; R. Roychoudhury; D.C. Mili; G.C. Das `; R.N. Goswami

doi:10.56093/ijvasr.v44i4.173648

Authors

Jakir Hussain M.V.Sc. Scholar, Department of Livestock Production and Managaement, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022
R. Roychoudhury M.V.Sc. Scholar, Department of Livestock Production and Managaement, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022
D.C. Mili M.V.Sc. Scholar, Department of Livestock Production and Managaement, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022
G.C. Das ` Professor, Department of Animal Genetics and Breeding, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022
R.N. Goswami Dean, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati - 781 022

https://doi.org/10.56093/ijvasr.v44i4.173648

Keywords:

Peak milk yield, Jersey cross, Holstein Friesian cross

Abstract

The present investigation was done through field recording of milk production of milch cows reared by the farmers in and around the greater Guwahati of Kamrup district of Assam. The cows in first lactation were included for the study. The least-squares means of peak milk yield were 8.775 ± 0.194, 11.025 ± 0.194 and 2.500 ± 0.194 liters and days to attain peak milk yield were 32.650 ± 1.182, 35.650 ± 1.182 and 28.600 ± 1.182 days for Jersey X Local, Holstein Friesian X Local and Local cows of Assam respectively under field condition. The effect of genetic group was highly significant (p<0.01) on peak milk yield and days to attain peak milk yield. Significantly highest peak milk yield was observed in Holstein Friesian X Local cows. The days to attain peak milk yield in the Local cows was significantly the lowest. The effect of season of calving was significant (p<0.05) on peak milk yield only. The mean peak milk yield of cows calved in South -West monsoon season was significantly higher than those calved during winter season.

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